Rumors of Ryan Gosling being eyed to take over the Marvel role of Black Panther have spread like wildfire online … but there is not a vibranium ounce of truth to it, TMZ has learned.

An insider with direct knowledge tells us … Ryan has not been cast — nor has he been eyed — to play an iteration of Black Panther … the iconic African superhero first played on the big screen by the legendary Chadwick Boseman.

Rumors of the brazen casting have swirled out of control — even generating headlines — and it seems this all started from a meme of Ryan’s face photoshopped onto Black Panther posted back in 2018 … and used by haters taking shots at Disney’s diversity casting for historically white roles.

It’s a good bet the rumor was plausible — even if completely outlandish — since Marvel does love the anything-is-possible multiverse … but this one ain’t in the cards. It’s true, however, that Ryan is joining the ‘Star Wars’ universe in the upcoming flick, “Starfighter.”